O.S. engine max-12TZ series Owner's Instruction Manual page 10

Swith on the transmitter and make sure that
each linkage moves correctly.
Turn the engine with starter box to draw he
fuel into the engine.
Deliver fuel into the carburetor.
Fuel
Fuel tank side
Now connect glowplug battery lead to heat
the plug filament and start the engine.
When the engine starts, first allow it to
operate in short runs at the very rich starting
settings, with the glowplug battery still
connected and the driving wheels clear of
the ground. The rich mixture will, under
these conditions, provide
lubrication and cooling, indicated by profuse
smoke from the exhaust.
Run the car on the track until one tank of fuel
has been consumed, then close the Needle-
Valve 15˚ and run the car for 3 to 5 full tanks
of fuel. Repeat this procedure until approx. 2
liters of fuel have been consumed, during
which time the throttle may be opened for brief
bursts of increased power. If the engine stops
at medium speeds, close the Mixture Screw
45˚.
The position of the needle-valve
when starting the engine.
Close the needle-valve approx.
Needle
15˚ after running the vehicle for
3 to 5 full tanks of fuel.
Repeat this procedure until
approx. 2 liters of fuel have
been consumed.
Note:
If the engine should
disassembled (e.g. for cleaning or minor
parts replacement), it is advisable to return
the needle-valve to the original rich,
starting setting and check whether further
Attention:
It is vitally important to set
the throttle at the correct
position before starting the
engine. If the engine is
allowed to run with the throttle
too far open under ''no load'' conditions (i.e.
with the driving wheels not in contact with the
ground) it will rapidly over-heat and may be
seriously damaged.
Next, disconnect the glowplug battery and try
running the car on the track. If the engine
stalls, open the throttle fractionally, but try to
keep the engine running as rich as possible: if
adequate
it stops because of being excessively over-
rich, close the Needle-Valve 15˚ and try again.
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running-in time is required before the car is
raced again. In the event of any major work-
ing parts (e.g. piston/cylinder liner assem-
bly) being replaced or the fuel being
changed, especially to high nitro fuel, the
complete running-in should be repeated.
To stop the engine, close the throttle to idle
speed, then shut it off completely with the
trim lever on the transmitter. To cut off the
fuel supply, pinch the fuel delivery tube to
the carburetor.
Warning!
Do not touch rotating
parts, engine and silen-
cer when stopping the
engine as they become
very hot, and contact
need to be
with them may result in
a serious burn.
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Fuel